Answer:
America was moving towards an industrialized, modern, capitalist economy:
Industrialized because industry was becoming more important than agriculture.
Modern because scientific and engineering progress were being applied to industry in order to increase production and efficiency.
Capitalist because people were producing goods for profit, not just for mere survival.
The Byzantines spread Christianity mostly by sending out missionaries for the Greek Orthodox Church.
A device or substance for absorbing excessive or unwanted heat.
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John F. Kennedy predicted that america would have a man on the moon before the end of the 60's.